Originally Posted by
DYKWIA
You've been on here long enough to know that one-way same day flights cost a heck of a lot more than flights booked in advance... I bet it would have been cheaper if you'd booked a return with a date way in the future.
On Friday at least there was also Avios availability for Saturday. I didn't check on Saturday but usually BA only keep a few seats back from inventory on the day of departure.